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Exposes metrics ports on pods in order to enable GCP Managed Prometheus #2712

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merged 9 commits into from
Sep 1, 2022
Merged

Exposes metrics ports on pods in order to enable GCP Managed Prometheus #2712

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7d743f8
Exposes metrics ports on pods in order to enable GCP Managed Prometheus
austin-space Aug 18, 2022
ba90653
Merge branch 'main' into expose-metrics-ports
roberthbailey Aug 25, 2022
c6bc9ff
add docs for expose metrics on pods
austin-space Aug 31, 2022
eaba510
Merge branch 'expose-metrics-ports' of https://github.com/austin-spac…
austin-space Aug 31, 2022
59d333c
remove 'expose metrics' flag
austin-space Aug 31, 2022
da6346f
Update site/content/en/docs/Guides/metrics.md
austin-space Sep 1, 2022
e2cfa84
updated install.yaml
austin-space Sep 1, 2022
0dc7715
Merge branch 'expose-metrics-ports' of https://github.com/austin-spac…
austin-space Sep 1, 2022
3a9841b
Merge branch 'main' into expose-metrics-ports
markmandel Sep 1, 2022
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2 changes: 2 additions & 0 deletions install/helm/agones/templates/service/allocation.yaml
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Expand Up @@ -257,6 +257,8 @@ spec:
- name: {{ .Values.agones.allocator.service.grpc.portName }}
containerPort: {{ .Values.agones.allocator.service.grpc.targetPort }}
{{- end }}
- name: {{ .Values.agones.allocator.serviceMetrics.http.portName }}
containerPort: {{ .Values.agones.allocator.serviceMetrics.http.port }}
{{- if eq .Values.agones.allocator.disableTLS false }}
volumeMounts:
- mountPath: /home/allocator/tls
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10 changes: 7 additions & 3 deletions site/content/en/docs/Guides/metrics.md
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Expand Up @@ -17,6 +17,10 @@ We plan to support multiple exporters in the future via environment variables an

If you are running a [Prometheus](https://prometheus.io/) instance you just need to ensure that metrics and kubernetes service discovery are enabled. (helm chart values `agones.metrics.prometheusEnabled` and `agones.metrics.prometheusServiceDiscovery`). This will automatically add annotations required by Prometheus to discover Agones metrics and start collecting them. (see [example](https://github.com/prometheus/prometheus/tree/main/documentation/examples/kubernetes-rabbitmq))

{{% feature publishVersion="1.26.0" %}}
If your Prometheus metrics collection agent requires that you scrape from the pods directly(such as with Google Cloud Managed Prometheus), then the metrics ports for the controller and allocator will both be named `http` and exposed on `8080`. In the case of the allocator, the port name and number can be overriden with the `agones.allocator.serviceMetrics.http.portName` and `agones.allocator.serviceMetrics.http.port` helm chart values.
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{{% /feature %}}

### Prometheus Operator

If you have [Prometheus operator](https://github.com/coreos/prometheus-operator) installed in your cluster, just enable ServiceMonitor installation in values:
Expand Down Expand Up @@ -141,7 +145,7 @@ gcloud container node-pools create agones-metrics --cluster=... --zone=... \
By default we will disable the push gateway (we don't need it for Agones) and other exporters.

The helm chart supports
[nodeSelector](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector),
[nodeSelector](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector),
[affinity](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity) and [toleration](https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/), you can use them to schedule Prometheus deployments on an isolated node(s) to have an homogeneous game servers workload.

This will install a Prometheus Server in your current cluster with [Persistent Volume Claim](https://kubernetes.io/docs/concepts/storage/persistent-volumes/) (Deactivated for Minikube and Kind) for storing and querying time series, it will automatically start collecting metrics from Agones Controller.
Expand Down Expand Up @@ -172,8 +176,8 @@ First we will install [Agones dashboard](#grafana-dashboards) as [config maps](h
kubectl apply -f ./build/grafana/
```

Now we can install the
[Grafana Community Kubernetes Helm Charts](https://grafana.github.io/helm-charts/) from
Now we can install the
[Grafana Community Kubernetes Helm Charts](https://grafana.github.io/helm-charts/) from
their repository. (Replace `<your-admin-password>` with the admin password of your choice)

```bash
Expand Down